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  Networked wireless devices for local tracking and interactionUSPTO Application #: 20070037568Title: Networked wireless devices for local tracking and interaction Abstract: The present invention provides one or more powered wireless transceivers and/or one or more passive wireless transceivers networked to one another, a method for making same and the method of using these devices for locating, tracking and identifying each other, the products in which they are implemented and/or the person, animal or thing holding, maintaining or transporting the device with possible interaction among the devices. Specifically, the invention concerns keeping groups of devices within a certain range of one another, even as they may move around. (end of abstract) Agent: Mathews, Shepherd, Mckay, & Bruneau, P.A. - Princeton, NJ, US Inventors: Robert Warner, Jack Winters USPTO Applicaton #: 20070037568 - Class: 455422100 (USPTO) Related Patent Categories: Telecommunications, Radiotelephone System, Zoned Or Cellular Telephone System The Patent Description & Claims data below is from USPTO Patent Application 20070037568. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims the benefit of U.S. Provisional Patent Application No. 60/708,212, filed Aug. 15, 2005, the entirety of which is hereby incorporated by reference into this application. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention provides one or more powered wireless transceivers and/or one or more passive wireless transceiver devices networked to one another, a method for making same and the method of using these devices for locating, tracking and identifying each other, the products in which they are implemented and/or the person, animal or thing holding, maintaining or transporting the device. [0004] 2. Description of Related Art [0005] A radio-frequency identification (RFID) transceiver is a device that receives an electronic signal, generates a response signal, and then transmits the response signal. RFID transceivers have been used to locate, identify and track individual merchandise palettes, individual shipping containers on a palette or individual items within a container, on a retailer shelf or in use by an end user. RFID transceivers have been used to locate, identify and track individual persons, such as children, and individual animals by placing readers at the entrances and exits to rooms, buildings and other contained areas. These implementations have been effective at controlling and policing the movement of the persons or animals in and out of these contained areas. [0006] A global positioning satellite (GPS) receiver is a device that receives an electronic signal from three or more GPS satellites to determine its global position. GPS receivers in conjunction with other satellite or terrestrial means have been used to locate, identify and track individual shipping containers, individual trucks or other transportation means. They have been used to locate, identify and track individual persons, such as children, and individual animals when they are not in contained areas. Using GPS for tracking has many limitations, including the required line of sight to get a positioning, the need to translate longitude and latitude into usable terms and the relatively high cost. Trucks, containers, assets, persons or animals in buildings, in cities with high buildings, in vehicles and in dense forests are not able to establish, and therefore communicate, their global position. In addition to the high cost of implementing a GPS-based tracking system, there is also difficulty and cost associated with translating longitude and latitude readings into a format that is useful to a tracking operator or person. [0007] Conventional tracking methods and technology have focused on the use of RFIDs for controlling and policing the movement of individual merchandise palettes, individual shipping containers, individual items within a container, on a retailer shelf or in use by an end user or individual persons or individual animals in and out of these contained areas and the use of GPS receivers in conjunction with other satellite or terrestrial means to locate, identify and track individual shipping containers, individual trucks or other transportation means or individual persons or individual animals when they are not in contained areas and have not focused on controlling and policing the movement of these persons, animals or things when they are all located, traveling or moving together. [0008] U.S. Pat. No. 6,868,333 describes a group interaction system comprising a plurality of vehicle navigation systems that are capable of communicating with one another, displaying the location of other vehicle navigation systems in a group, and receiving selection of certain vehicle navigation systems in the group and selection of an application for interaction among the selected vehicle navigation systems. [0009] U.S. Pat. No. 6,788,199 describes a system and method for locating objects such as people, pets, and personal articles whereby a transceiver is attached to the person, animal, or item to be tracked and a handheld locator device is employed to transmit a locator signal containing an address code to the transceiver to determine the distance and/or direction of the transceiver from the user's location. [0010] U.S. Pat. No. 6,069,570 describes a low cost, low power, non-voice communication system that includes a pager, a control processor, a GPS receiver and a cell phone for determining the location or states of an asset or a class of assets in a larger array of assets such as a tractor trailer, a container, construction equipment, and service vehicles, which during normal operation, is in a low power or sleep mode. [0011] U.S. Pat. No. 5,588,005 describes two modes of communication for asset tracking units involving a primary mode of communication between a central station and the individual tracking units, usually through a satellite link, and a secondary or local area network (LAN) mode, in which a subset of tracking units communicate with each other to conserve power or when their batteries are too weak to support communication with the central station. [0012] The above described patents concern using wireless technology for the specific purpose of communicating between vehicle navigation systems, to find the distance and direction of a certain object, and to supplement a GPS-based tracking system for power conservation. [0013] It is desirable to provide a system of networked wireless devices for locating, tracking, identifying, and interacting with each other. SUMMARY OF THE INVENTION [0014] The present invention provides one or more powered wireless transceivers and/or one or more passive wireless transceivers networked to one another, a method for making same and the method of using these devices for locating, tracking and identifying each other, the products in which they are implemented and/or the person, animal or thing holding, maintaining or transporting the device with possible interaction among the devices. Specifically, this invention is directed to keeping groups of devices within a certain range of one another, even as they may move around for common benefit. In particular, the network is interconnected such that there is always a path from one user to another, through one or more hops, where the distance of each hop is less than a predetermined minimum. The distance of each hop is determined by the wireless technology deployed. If one or more members of the group are subject to disconnection, i.e., their power level, signal to noise ratio (SNR), or the like, falls below a threshold that is required for wireless connectivity, then an alarm notifies a master network node and/or the slave node subject to disconnection and/or all nodes that a disconnect may have occurred and which node is subject to disconnection. By allowing a disconnect alarm at a predetermined power level, SNR, and the like, above that for which complete disconnection would occur, the master node and/or unaffected connected nodes can send a data or voice (local Push To Talk) message to the nodes subject to disconnection to avoid or ameliorate the disconnection. A disconnection would deprive the affected node(s) of voice, data, video or other communication services with or through the unaffected node(s). A disconnection would also deprive the remaining connected node(s) of voice, data, video or other communication services with or through the affected nodes. A disconnection could deprive all the node(s) of voice, data, video or other communication service with a third party wireless or satellite link if one or more of the connected nodes were individually or in collaborative fashion wirelessly linked to the third party. [0015] Examples of potential groups with wirelessly connected devices include, but are not limited to, parents and children walking together as with shopping, groups of hikers, teachers and students on field trips or moving from class to class, vehicles traveling to the same location, military vehicles and/or troops on maneuvers, bicyclists on tour, runners on a set path, convoys of trucks or buses, motorcycle clubs and groups of marchers. Examples of third party wireless or satellite links include, but are not limited to, satellite voice or data networks, cellular, WiMAX or other wireless metropolitan area network (WMAN) voice and data networks, satellite or terrestrial video services, satellite or terrestrial audio services, and satellite or terrestrial information services. [0016] One embodiment of the wireless network of the present invention comprises a radio frequency identification (RFID) reader embedded within another electronics device and passive radio frequency identification (RFID) transceivers embedded within other electronics devices for one way wireless connectivity. A second embodiment of the wireless network of the present invention comprises radio frequency identification (RFID) readers and passive radio frequency identification (RFID) transceivers embedded within electronics devices for two way wireless connectivity. A third embodiment of the wireless network of the present invention comprises radio frequency identification (RFID) readers and active radio frequency identification (RFID) transceivers embedded within electronics devices for two way wireless connectivity. A fourth embodiment of the wireless network of the present invention comprises Bluetooth or other wireless personal area network (WPAN) modules within electronics devices for two way wireless connectivity. A fifth embodiment of the wireless network of the present invention comprises WiFi or other wireless local area network (WLAN) modules within electronics devices for two way wireless connectivity. A sixth embodiment of the wireless network of the present invention comprises WiMAX or other wireless metropolitan area network (WMAN) modules within electronics devices for two way wireless connectivity. A seventh embodiment of the wireless network of the present invention comprises a combination of RFID, WPAN, WLAN, WMAN modules within electronics devices for two way wireless connectivity with user selectable power, range, data rate and application options. An eighth embodiment of the wireless network of the present invention comprises an RFID, WPAN, WLAN, or WMAN module with user/group-controlled mesh networking capability within electronics devices for two way wireless connectivity with range that encompasses an extended group. A ninth embodiment of the wireless network of the present invention comprises an RFID, WPAN, WLAN, or WMAN module with third party satellite or wireless connectivity and with user/group-controlled mesh networking capability within electronics devices for two way wireless connectivity with range that encompasses an extended group. A tenth embodiment of the wireless network of the present invention comprises an RFID, WPAN, WLAN, or WMAN module with third party satellite or wireless connectivity that can be used in a collaborative fashion with the other grouped nodes to download data or video more efficiently and/or effectively than possible individually and with user/group-controlled mesh networking capability within electronics devices for two way wireless connectivity with range that encompasses an extended group. In each embodiment, there are trade offs between cost, power, range and possible data rates and applications. [0017] In all cases, the present invention can be used for locating, identifying and tracking of groups of in situ electronics devices. Alternatively, the present invention can be used for locating, identifying and tracking of the electronics device throughout the logistics process. BRIEF DESCRIPTION OF THE DRAWINGS [0018] FIG. 1 is a schematic diagram of an embodiment of the wireless device of the present invention in which nodes are connected in a path. [0019] FIG. 2 is a schematic diagram of an alternate embodiment of the wireless device of the present invention in which nodes are connected in an ad hoc network. [0020] FIG. 3 is a schematic diagram of an alternative embodiment of the wireless device of the present invention in which nodes are connected in an ad hoc network with two or more of the nodes having third party satellite or wireless connectivity that can be used in a collaborative fashion to increase overall user bandwidth. Continue reading... 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